You are dealing with tetrodotoxin and it is many more time as lethal as cyanide poisoning. If truly contaminated with tetrodotoxin, it can be a serious issue. Below is what a worst case scenario of decontamination would probably be and thankfully you havent ingested or had any on your skin.
I can't recommend what you should wear as the article states all sorts of protective gear.
http://www.cdc.gov/NIOSH/ershdb/EmergencyResponseCard_29750019.html
* INTRODUCTION: The following are general recommendations for hazardous material exposure. However, it is unlikely that tetrodotoxin will require extensive decontamination, as its toxicity is primarily through individual ingestion. Off gassing is not believed to be a hazard. Safe disposal of the contaminated food and cleaning of all food preparation surfaces and utensils with soap and water should be sufficient.
The purpose of decontamination is to make an individual and/or their equipment safe by physically removing toxic substances quickly and effectively. Care should be taken during decontamination, because absorbed agent can be released from clothing and skin as a gas. Your Incident Commander will provide you with decontaminants specific for the agent released or the agent believed to have been released.
* DECONTAMINATION CORRIDOR: The following are recommendations to protect the first responders from the release area:
o Position the decontamination corridor upwind and uphill of the hot zone.
o The warm zone should include two decontamination corridors. One decontamination corridor is used to enter the warm zone and the other for exiting the warm zone into the cold zone. The decontamination zone for exiting should be upwind and uphill from the zone used to enter.
o Decontamination area workers should wear appropriate PPE. See the PPE section of this card for detailed information.
o A solution of detergent and water (which should have a pH value of at least 8 but should not exceed a pH value of 10.5) should be available for use in decontamination procedures. Soft brushes should be available to remove contamination from the PPE.
o Labeled, durable 6-mil polyethylene bags should be available for disposal of contaminated PPE.
* INDIVIDUAL DECONTAMINATION: The following methods can be used to decontaminate an individual:
o Decontamination of First Responder:
+ Begin washing PPE of the first responder using soap and water solution and a soft brush. Always move in a downward motion (from head to toe). Make sure to get into all areas, especially folds in the clothing. Wash and rinse (using cold or warm water) until the contaminant is thoroughly removed.
+ Remove PPE by rolling downward (from head to toe) and avoid pulling PPE off over the head. Remove the SCBA after other PPE has been removed.
+ Place all PPE in labeled durable 6-mil polyethylene bags.
o Decontamination of Patient/Victim:
+ Remove the patient/victim from the contaminated area and into the decontamination corridor.
+ Remove all clothing (at least down to their undergarments) and place the clothing in a labeled durable 6-mil polyethylene bag.
+ Thoroughly wash and rinse (using cold or warm water) the contaminated skin of the patient/victim using a soap and water solution. Be careful not to break the patient/victim’s skin during the decontamination process, and cover all open wounds.
+ Cover the patient/victim to prevent shock and loss of body heat.
+ Move the patient/victim to an area where emergency medical treatment can be provided.
What breaks down a protein structure.
Meat tenderizer
Heat
Acidic environment - Vinegar
70% alcohol not 90% or above (coagulates only)
10% Chlorine not full strength; but it is harsh on your gear; I dont like chlorine touching any of my gear.
What ever solution is available to treat jelly fish stings.
Sorry for sounding scientific as denaturing a protein (destroying its folded structure to make it non-functional) is the goal here.
I think you are not looking to attack a bacterial cell but the poisonous protein a bacteria makes.